Tactics for the Stronghold.

Reveal the secret,
tell me how to rush with the Stronghold :)
No, let me put it simpler – how can you even kill anyone with it? :))

You used to play as the Barbarian! :)

By the way, in my opinion, the rush tactic in the situation you described doesn't really work.
Even if a Barbarian with 2 Ogres and, say, 9 Imps defeats the Rampart's army, the losses will be catastrophic – losing one Ogre is not the same as, say, losing 10 Elves – it hurts, but it's bearable.
I believe that the main strength of the Stronghold lies in quickly exploring the entire map, capturing as many castles and resources as possible. Only then does the Barbarian have a chance to win. The fact that the 7th level is built in the first week already says a lot... that is, by the time of the final battle, when the Barbarians have finally gathered all their troops, even buying slow and weak units, and go into the last battle, they will most likely have more troops than the Castle or Rampart.

And clearing the map of neutrals with just Ogres and Imps is very convenient – the battles take place with almost no losses.
In my opinion, you should focus on that.